Carmex Carbide Tiny Tool is a compact boring bar designed for small-diameter bores and tight spaces. With a 5.1 mm minimum diameter, 22 mm reach, and a left-hand R0.1 nose, it delivers rigid, repeatable performance for precise boring and light turning tasks.

Built from solid carbide and offered in two high-performance grades, this tool covers a wide range of materials and speeds. The BXC Grade uses a PVD TiN coating optimized for low-cutting-speed applications and delivers reliable results with stainless steels (ISO P30-P50 / K25-K40). The BMK Grade employs a sub-micron carbide core with an advanced PVD triple coating, delivering excellent heat resistance and smooth cutting for general-purpose use across materials.

• Two optimized carbide grades for versatile material coverage: Choose BXC TiN for stainless steels at low speeds or BMK’s sub-micron, triple-coated carbide for high-heat, broad-material cutting, ensuring dependable performance across applications.
• Left-hand bore geometry with a precise R0.1 nose radius: The left-hand orientation and tiny R0.1 nose provide controlled entry, reduced chatter, and a clean, repeatable bore finish in tight tolerances.
• Compact, rigid carbide design with 22 mm reach: The 5.1 mm minimum diameter and 22 mm reach combine to access deep features with stiffness and consistent cutting performance for boring and general turning.

This Tiny Tool delivers predictable, finish-ready results in small-diameter bores, helping you reduce setup time, minimize tool changes, and maintain tight tolerances across a range of materials. Its robust carbide construction and tailored coatings help you achieve smoother cuts, longer tool life, and reliable performance in everyday machining tasks.